As part of Road Trip 2015, CNET visits Mcity, a 32-acre fake city in Michigan designed to test self-driving cars' navigation and communication abilities -- and to keep research from migrating to Silicon Valley.

Crazy fast chargers, responsible luggage, and future-forward pocket watches are only a few of the weird things we saw at Mobile World Congress 2015. Take a look at the most interesting devices with the CNET TV team.